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No. 6|5,2|5. Patented Nov. 29, I898.

W. E. FORSTER. ROLLER HEAD FOR -SOLE LEVELING MACHINES.

(Application fi led bee. 8, 1893.) N 0 M 0 d e I WITNEE 51:5- INVENTUR.

UNITED STATES PATENT OFFICE.

WILLIAM E. FORSTER, OF LYNN, MASSACHUSETTS, ASSIGNOR TO BENJAMIN PHILLIPS, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent Ive 615,215, dated'November 29, 1898. Application filed December 8,1893. Serial No. 493,176. (No model.)

To all whom it may concern: I

Be it known'that I, WILLIAM E. FORSTER, a citizen of the United States, and a resident of Lynn, in the county of Essex and Commonwealth of Massachusetts, have invented a new and useful Roller-Head for Sole-Leveling Machines, of which the following is a specification.

My invention relates to an improved attachmentfor that class of leveling-machines in which the operation of leveling is performed by a vibrating leveling-roll; and it consists, first, of a pair of obliquerolls which operate simultaneously on opposite sides of the sole and the axes of which are inclined to each other; second, of the combination of said rolls with a series of spring-pressed movable bearings therefor; third, of the combination of said rolls provided with said bearings with a horizontal roll acting upon the central portion of soles, and of the devices and combination of devices hereinafter set forth and claimed. v

The object of my invention is to provide a device which will enable leveling-machines of the class described to operate simultaneously on both sides of a sole.

That those skilled in the art may thoroughly understand the nature and use of my inventionI have herein described and shown in connection therewith the immediately-associated parts of a leveling-machine, said machine being that shown and described in United States Letters Patent to Strong, of May 14, 1889, No. 403,495, to which reference may be had for description of the general operation of machines of this class when the same shall be omitted from this specification, and I wish to be understood as selecting said machine for purposes of illustration only, as my invention with unimportant modifications may be adapted to many forms of associated mechanism.

My invention is illustrated by the accompanying drawings, in which- Figure 1 is afront view, and Fig. 2 a plan view, of roller-head, showing my invention and immediately associated parts of the Strong machine.

Similar letters and figures of reference refer to similar parts throughout both views.

Referring to the drawings, 1 represents a frame in which working parts of my device are mounted. Projecting from frame 1 are the tongues 2 2, which are adapted to slide in suitable ways in the arms O. The arms 0 O are those shown and described and designated by the same letters of reference in said Letters Patent to Strong. Upon the inside of the frame 1 are the lugs 3 3, to which are secured the rods B B, which are the rods designated by the same reference-letters in said Strong patent. When connected in manner above described with the Strong machine, my device is substituted for the head carrying the single horizontal roll shown therein.

Mounted on the rods 4 4 are the rolls 5 5,

preferably tapered, with a curved contour,

substantially as shown, though any suitable modifications may be made in the shape thereof without aifecting the essential nature of my invention.

The rolls 5 5 are free to rotate on rods 4 4, but held in position thereon by suitable collars 6 6. The outer ends of rods 4 4 are supported in suitable bearings in the box 7 7, through which they are free to slide.

On the boxes 7 7 (substantially at right angles with rods 4 4 when inserted in same) are the lugs 8 8, which are adapted to slide in suitable ways 9 9 and 99 in frame 1 and which are circular in section, so that the boxes 7 7 may tip thereon. By this arrangement the boxes 7 7 are allowed a tipping and vertically reciprocating motion. The inner ends of rods 4 4 are united by a hinge 10, which allows them to open and close on each other, varying their inclination. The hinge 10 is surrounded by a circular casing 11, and the upper ends of rolls 5 5 concave to correspond, so that the hinge 10 may be raised or lowered or the rods 4 4 change their inclination without interfering with rotation of rolls 5 5.

The case 11 is supported from the frame 1 by the bolt 12 and a collar 13 on said bolt, which engages in a groove 14 in a lug 15 on the case 11.

The upper portion of bolt 12 is threaded and engages with a threaded sleeve 10, mounted in suitable bearings in frame 1, in which it is free to slide, being supported by a collar 17. The sleeve 16 is made rectangular to prevent it from turning in its bearings. A spring 18 bears against frame 1 and the lug 15. This arrangement allows the hinge 10 to rise against the tension of the spring 18.

Between the rolls 5 5 and the boxes 7 7 are the springs 19 10, so arranged that the rods a i slide through the boxes 7 7 against the tension of same.

Bearing against frame 1 and boxes 7 7, respectively, are the springs 20 20, so arranged that the boxes 7 7 are raised against their tension.

The bolt 12 is provided with a hand-wheel, by means of which it may be turned in sleeve 16 to adjust tension of spring 18.

Adjacent to the oblique rolls 5 5 is placed the horizontal roll 21, (preferably concave,) revoluble about a rod 22, suitably mounted in frame 1. The roll 21 is conveniently placed as near as practical to the rolls 5 5. The roll 21 may be placed either at front or back of rolls 5 5.

The operation of beating out a shoe by vibrating roll has already been sufficiently described in Letters Patent hereinbefore referred to.

In the operation of my invention when the rolls are brought in contact with the sole and pressure applied, as described in said Letters Patent, the horizontal roll 21 follows the central line of the shoe, operating on parts adjacent thereto, and the oblique rolls by means of the movable spring-pressed bearings hereinbefore described vary their inclination under the pressure and conform to the portions of sole nearer its edges, thereby operating on substantially all portions of sole requiring such operation as the sole is passed once under the rolls. By this means I am able to do away with much labor of the oper ation in moving the shoe in and out beneath the rolls and also to dispense almost entirely with the necessity of rockiu g the jack or roller head.

I do not consider my invention limited to the specific form of mechanism herein shown and described; but

I claim, broadly, and desire to secure by Letters Patent, in a roller-head for sole-leveling machines-- 1. In a sole-leveling machine, the combination with a supportingdast, of a pair of leveling-rolls arranged end to end and inclined relatively to each other and adapted to operate substantially simultaneously upon each side of the bottom of the sole of a shoe on the last, and means to permit said rolls to automatically conform to the varying curvature of the bottom of the sole, substantially as dc scribed.

2. In a solc-levelin g machine, the combination with a pair of leveling-rolls mounted on inclined bearings of rocking vertically-movable boxes in which the outer ends of said bearings are mounted and free to slide, substantially as described.

3. In a sole-leveling machine, the combination with a pair of leveling-rolls mounted on inclined bearings, of a vertically movable support for the inner ends of said bearings, and rocking vertically movable boxes in which the outer ends of said bearings are mounted and free to slide, substantially as described.

i. In a sole-leveling machine, the combination with a pair of leveling-rolls placed end to end and inclined relatively to each other and arranged to operate substantially simul taneously upon opposite sides of the bottom of a shoe-sole, of spring-controlled supports for said rolls arranged to permit an independent angular movement of said rolls whereby the rolls may conform to the opposite sides of the bottom of the shoe-sole, substantially as described.

5. In a sole-leveling machine, the combination with a pair of leveling-rolls mounted upon suitable bearings, of a vertically-movable support for the inner ends of said bearings arranged to permit the rolls to vary their relative inclination, substantially as described.

6. In a sole-leveling machine, the combination with a supporting and forming last, of leveling-rolls located respectively to operate upon opposite sides of the bottom of the sole, means permitting the rolls to adapt themselves to the bottom of the sole, a common support for the inner ends of the rolls and means to regulate the pressure of said rolls, substantially as described.

7. In a sole-levelin g machine, the combination with a supporting and forming last, of a reciprocating carrier, leveling-rolls on the carrier arranged to operate upon each side of the bottom of the sole, means permitting the rolls to adapt themselves to the contour of the last, and means for simultaneously adjusting the inner ends of said rolls, substantially as described.

8. In a sole-leveling machine, the combination with a pair of leveling-rolls coupled to-- gether at their inner ends of a yielding vertieally-adjustable support for the inner ends of said rolls, substantially as described.

9. In a sole-leveling machine, the combination with a pair of leveling-rolls, of a vertically-adjustable support for the inner ends of said rolls, vertically-movable supports for the outer ends of said rolls, and means to permit said rolls to have an independent movement toward and from each other, substantially as described.

10. In a sole-levelingmachine,the combination with a pair of leveling-rolls mounted on verticallymovable bearings connected at their inner ends, said rolls arranged to operate simultaneously upon opposite sides of the witnesses, this 4th day of December, A. D. bottom of the sole, of a leveling-roll adja- 1893. cent the first rolls arranged to operate upon the central portion of the sole, substantially 5 as described. Witnesses:

In testimony whereof I have hereunto set I CHAS. ALLEN TABER, my hand, in the presence of two attesting H. J. LOVEJOY.

WILLIAM E. FORSTER. I 

